Hopefully I can answer your ?'s.1. I suppose that if scientists went to church, and some may, they would come to believe that God made the universe. But as scientists in the labratory, they would have to leave ?'s of faith out of the picture because they are required to hypothesize, theorize, test, observe, etc., about what it is they're studying. This does not mean that these scientists may totally rid themselves of the idea that "God did it". Instead, without bringing any bias into their experiments, observations, etc., they may choose to ask themselves, "How did God make the Big-Bang happen?" I don't know for sure myself 2.Life may have originated in hydrosulfuric vents at the bottom of the ocean where tiny creatures could evolve to feed on the highly consentrated nutrients spewing out of the vents.
Both A&B, I believe, are assumptions on your part?